*2026/01/16 10:37:49.30 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/10 22:11:23.000 END TIME : UTC 2025/03/10 22:11:50.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 138 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.26 2 Depth metres 0.15 41.24 3 Temperature 'deg C (ITS90)' 8.1 9.202 4 Conductivity S/m 1.06122 2.96375 5 Conductance:Specific S/m 1.60304 4.34773 6 Salinity PSS-78 9.13 27.17 7 Speed:Sound m/s 1450.97 1477.59 8 Density kg/m^3 1007.017 1021.172 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 2 2 -99 ' ' 7 F R4 2 3 -99 ' ' 8 F R4 3 4 -99 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -99 ' ' 9 F R4 3 $END *ADMINISTRATION MISSION : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 70 LATITUDE : 49 7.84210 N ! (deg min) LONGITUDE : 125 42.80150 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250310_221123 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 138 138 MERGEHDR 1.3 2026/01/16 10:35:40 138 138 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 138 138 CALIB 12.1 2026/01/16 10:37:12 138 138 CLEAN 5.3 2026/01/16 10:37:49 138 138 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 Applied edit header: C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\castaway2023_HDR.txt Channel 2: Depth [metres] Format: F10.6 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F14.6 ==> F8.3 Channel 4: Conductivity [mS/cm] Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 5: Conductance:Specific [mS/cm] Name: Specific Conductance ==> Conductance:Specific Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F14.6 ==> F7.2 Channel 7: Speed:Sound [m/s] Name: Sound Velocity ==> Speed:Sound Format: F14.6 ==> F8.2 Channel 8: Density [kg/m^3] Format: F14.6 ==> F9.3 -REMOVECH 2026/01/16 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:12 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 -CLEAN functions: 2026/01/16 10:37:42 20 Reset #RECS, MIN & MAX values in header. Set header Start and End times from the data. $END *COMMENTS Data Processing Notes: The CastAway-CTD is a small profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions. It is designed for profiling to depths of up to 100m at 5 Hz. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor (<5Hz) to attain high measurement accuracies. The instrument does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s. Processing was done using the CastAway CTD data processing system which included the following steps: - Pressure correction to remove ambient atmospheric pressure. - Removal of records obtained while the system was stationary. - De-spiking of conductivity data to remove erratic measurements near the water surface that can be caused by air bubbles trapped in the conductivity flow cell. - Bin-averaging with 0.3db bins with linear interpolation used to fill empty bins or the nearest available value for surface or bottom bins. - Combination of downcast and upcast data using a weighted average based on fall velocity. - Derivation of specific conductance, salinity, sound speed, density and depth for each pressure bin. The data were converted to IOS Header format. Calibration dates were taken from the original data file header: % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2020-03-13 % Temperature calibration date,2020-03-12 % Pressure calibration date,2020-03-04 % *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 8.100 1.06122 1.60304 9.13 1450.97 1007.017 0.45 0.46 8.128 1.14117 1.72236 9.87 1451.99 1007.592 0.75 0.76 8.280 1.28665 1.93305 11.19 1454.24 1008.610 1.05 1.06 8.431 1.67934 2.51163 14.87 1459.37 1011.472 1.35 1.36 8.421 1.82777 2.73444 16.31 1461.10 1012.598 1.65 1.67 8.372 1.95180 2.92429 17.55 1462.43 1013.569 1.95 1.97 8.361 2.02678 3.03765 18.29 1463.30 1014.151 2.25 2.27 8.410 2.22003 3.32237 20.17 1465.81 1015.618 2.55 2.57 8.460 2.41084 3.60258 22.05 1468.31 1017.078 2.85 2.87 8.510 2.49134 3.71735 22.82 1469.45 1017.680 3.15 3.17 8.548 2.52169 3.75828 23.10 1469.95 1017.895 3.45 3.47 8.564 2.55642 3.80823 23.44 1470.43 1018.159 3.75 3.77 8.576 2.60076 3.87294 23.88 1471.02 1018.502 4.05 4.07 8.592 2.64780 3.94116 24.35 1471.66 1018.864 4.35 4.37 8.605 2.66093 3.95907 24.47 1471.87 1018.959 4.65 4.67 8.612 2.68101 3.98817 24.67 1472.14 1019.115 4.95 4.97 8.619 2.68909 3.99933 24.74 1472.26 1019.175 5.25 5.27 8.627 2.69624 4.00902 24.81 1472.38 1019.228 5.55 5.57 8.631 2.70434 4.02057 24.89 1472.50 1019.290 5.85 5.87 8.636 2.70863 4.02640 24.93 1472.57 1019.322 6.15 6.17 8.643 2.71394 4.03342 24.98 1472.66 1019.361 6.45 6.47 8.648 2.72135 4.04382 25.05 1472.78 1019.417 6.75 6.77 8.653 2.72961 4.05546 25.13 1472.90 1019.480 7.05 7.07 8.663 2.73761 4.06619 25.20 1473.03 1019.538 7.35 7.37 8.677 2.74610 4.07706 25.28 1473.18 1019.597 7.65 7.67 8.686 2.74863 4.07981 25.30 1473.24 1019.612 7.95 7.97 8.696 2.75046 4.08134 25.31 1473.30 1019.621 8.25 8.27 8.704 2.75066 4.08060 25.31 1473.33 1019.618 8.55 8.57 8.716 2.75268 4.08221 25.32 1473.40 1019.628 8.85 8.87 8.730 2.75353 4.08177 25.32 1473.45 1019.626 9.15 9.17 8.747 2.76415 4.09539 25.41 1473.64 1019.699 9.45 9.47 8.769 2.77974 4.11584 25.55 1473.90 1019.808 9.75 9.77 8.794 2.79438 4.13439 25.68 1474.16 1019.907 10.05 10.07 8.816 2.80292 4.14438 25.75 1474.34 1019.961 10.35 10.37 8.842 2.80810 4.14886 25.79 1474.48 1019.985 10.65 10.67 8.870 2.81878 4.16113 25.87 1474.70 1020.050 10.95 10.97 8.897 2.82756 4.17080 25.94 1474.89 1020.102 11.25 11.27 8.926 2.83957 4.18500 26.04 1475.13 1020.178 11.55 11.57 8.945 2.85257 4.20173 26.16 1475.35 1020.268 11.85 11.87 8.966 2.86127 4.21195 26.23 1475.52 1020.323 12.15 12.17 8.999 2.87263 4.22453 26.32 1475.76 1020.390 12.45 12.47 9.049 2.88332 4.23406 26.39 1476.04 1020.440 12.75 12.77 9.092 2.88687 4.23393 26.40 1476.21 1020.438 13.05 13.07 9.125 2.89198 4.23735 26.43 1476.37 1020.456 13.35 13.37 9.158 2.89713 4.24071 26.45 1476.54 1020.473 13.65 13.67 9.181 2.90135 4.24409 26.48 1476.66 1020.491 13.95 13.97 9.190 2.90391 4.24675 26.50 1476.72 1020.507 14.25 14.27 9.198 2.90741 4.25090 26.53 1476.79 1020.530 14.55 14.57 9.197 2.90744 4.25097 26.53 1476.80 1020.531 14.85 14.87 9.200 2.90753 4.25076 26.53 1476.81 1020.531 15.15 15.17 9.201 2.90645 4.24905 26.51 1476.80 1020.523 15.45 15.47 9.202 2.90811 4.25136 26.53 1476.83 1020.537 15.75 15.77 9.184 2.90879 4.25459 26.55 1476.79 1020.557 16.05 16.07 9.154 2.91237 4.26362 26.61 1476.76 1020.608 16.35 16.36 9.126 2.91420 4.26977 26.65 1476.70 1020.644 16.65 16.66 9.112 2.91097 4.26681 26.63 1476.63 1020.630 16.95 16.96 9.076 2.90763 4.26633 26.62 1476.49 1020.631 17.25 17.26 9.050 2.90388 4.26412 26.60 1476.37 1020.622 17.55 17.56 9.033 2.90168 4.26309 26.59 1476.30 1020.618 17.85 17.86 9.016 2.90187 4.26548 26.60 1476.26 1020.633 18.15 18.16 8.994 2.90259 4.26932 26.63 1476.21 1020.656 18.45 18.46 8.976 2.90277 4.27176 26.64 1476.17 1020.672 18.75 18.76 8.972 2.90348 4.27339 26.65 1476.17 1020.682 19.05 19.06 8.968 2.90287 4.27291 26.65 1476.16 1020.681 19.35 19.36 8.966 2.90297 4.27338 26.65 1476.15 1020.685 19.65 19.66 8.965 2.90317 4.27378 26.65 1476.16 1020.688 19.95 19.96 8.965 2.90496 4.27634 26.67 1476.19 1020.703 20.25 20.26 8.964 2.90587 4.27781 26.68 1476.20 1020.712 20.55 20.56 8.956 2.90830 4.28245 26.71 1476.21 1020.739 20.85 20.86 8.947 2.90874 4.28426 26.72 1476.20 1020.751 21.15 21.16 8.945 2.91060 4.28723 26.74 1476.22 1020.768 21.45 21.46 8.942 2.90903 4.28525 26.73 1476.20 1020.759 21.75 21.76 8.931 2.90884 4.28638 26.74 1476.17 1020.767 22.05 22.06 8.913 2.90828 4.28782 26.74 1476.11 1020.776 22.35 22.36 8.901 2.90809 4.28908 26.75 1476.08 1020.785 22.65 22.66 8.892 2.90914 4.29181 26.77 1476.07 1020.802 22.95 22.96 8.884 2.90986 4.29389 26.78 1476.06 1020.814 23.25 23.26 8.879 2.91082 4.29591 26.80 1476.07 1020.827 23.55 23.56 8.874 2.91048 4.29604 26.80 1476.05 1020.829 23.85 23.85 8.867 2.91126 4.29803 26.81 1476.05 1020.841 24.15 24.15 8.863 2.91101 4.29821 26.81 1476.04 1020.844 24.45 24.45 8.860 2.91118 4.29890 26.81 1476.03 1020.849 24.75 24.75 8.854 2.91154 4.30012 26.82 1476.03 1020.857 25.05 25.05 8.851 2.91210 4.30133 26.83 1476.03 1020.865 25.35 25.35 8.849 2.91152 4.30078 26.82 1476.02 1020.863 25.65 25.65 8.847 2.91157 4.30105 26.83 1476.02 1020.866 25.95 25.95 8.847 2.91223 4.30200 26.83 1476.04 1020.873 26.25 26.25 8.851 2.91247 4.30195 26.83 1476.05 1020.874 26.55 26.55 8.850 2.91489 4.30559 26.86 1476.09 1020.894 26.85 26.85 8.848 2.91529 4.30649 26.86 1476.09 1020.901 27.15 27.15 8.848 2.91462 4.30548 26.86 1476.09 1020.896 27.45 27.45 8.847 2.91475 4.30573 26.86 1476.09 1020.899 27.75 27.75 8.846 2.91475 4.30585 26.86 1476.09 1020.901 28.05 28.05 8.845 2.91467 4.30592 26.86 1476.09 1020.903 28.35 28.35 8.843 2.91419 4.30540 26.85 1476.09 1020.901 28.65 28.65 8.842 2.91452 4.30611 26.86 1476.09 1020.907 28.95 28.95 8.840 2.91463 4.30655 26.86 1476.09 1020.910 29.25 29.25 8.839 2.91530 4.30757 26.87 1476.10 1020.917 29.55 29.55 8.839 2.91530 4.30764 26.87 1476.11 1020.919 29.85 29.85 8.838 2.91562 4.30827 26.87 1476.11 1020.924 30.15 30.15 8.837 2.91617 4.30917 26.88 1476.12 1020.930 30.45 30.45 8.834 2.91674 4.31036 26.89 1476.13 1020.938 30.75 30.74 8.821 2.91661 4.31184 26.90 1476.09 1020.947 31.05 31.04 8.817 2.91743 4.31350 26.91 1476.10 1020.958 31.35 31.34 8.814 2.91745 4.31396 26.91 1476.09 1020.962 31.65 31.64 8.810 2.91767 4.31481 26.91 1476.09 1020.968 31.95 31.94 8.810 2.91778 4.31491 26.91 1476.09 1020.970 32.25 32.24 8.810 2.91757 4.31465 26.91 1476.10 1020.970 32.55 32.54 8.811 2.91794 4.31510 26.92 1476.11 1020.973 32.85 32.84 8.813 2.91813 4.31511 26.92 1476.12 1020.974 33.15 33.14 8.820 2.91919 4.31576 26.92 1476.16 1020.979 33.45 33.44 8.826 2.92157 4.31853 26.94 1476.21 1020.995 33.75 33.74 8.833 2.92364 4.32075 26.96 1476.26 1021.008 34.05 34.04 8.840 2.92678 4.32446 26.98 1476.32 1021.029 34.35 34.34 8.845 2.92717 4.32436 26.98 1476.35 1021.029 34.65 34.64 8.848 2.92738 4.32429 26.98 1476.36 1021.030 34.95 34.94 8.851 2.92833 4.32529 26.99 1476.39 1021.036 35.25 35.24 8.854 2.92785 4.32425 26.98 1476.40 1021.032 35.55 35.54 8.855 2.92780 4.32397 26.98 1476.41 1021.032 35.85 35.84 8.857 2.92761 4.32353 26.98 1476.41 1021.031 36.15 36.14 8.863 2.92798 4.32327 26.98 1476.44 1021.030 36.45 36.44 8.870 2.92921 4.32423 26.98 1476.48 1021.036 36.75 36.74 8.876 2.93126 4.32651 27.00 1476.52 1021.049 37.05 37.03 8.892 2.93301 4.32706 27.01 1476.60 1021.053 37.35 37.33 8.888 2.93491 4.33028 27.03 1476.62 1021.072 37.65 37.63 8.888 2.93573 4.33157 27.04 1476.63 1021.080 37.95 37.93 8.893 2.93733 4.33319 27.05 1476.67 1021.090 38.25 38.23 8.909 2.94303 4.33955 27.09 1476.79 1021.124 38.55 38.53 8.982 2.94796 4.33747 27.09 1477.07 1021.111 38.85 38.83 9.019 2.95180 4.33842 27.10 1477.22 1021.115 39.15 39.13 9.045 2.95403 4.33842 27.10 1477.33 1021.115 39.45 39.43 9.053 2.95657 4.34119 27.12 1477.38 1021.131 39.75 39.73 9.061 2.95854 4.34294 27.13 1477.44 1021.141 40.05 40.03 9.072 2.95910 4.34247 27.13 1477.48 1021.140 40.35 40.33 9.077 2.95936 4.34213 27.13 1477.50 1021.139 40.65 40.63 9.079 2.95993 4.34270 27.13 1477.52 1021.143 40.95 40.93 9.080 2.95998 4.34271 27.13 1477.53 1021.144 41.26 41.24 9.084 2.96375 4.34773 27.17 1477.59 1021.172